Tool handle



July 20,' 1943. I c. c. HAUMERYSON- TOOL HANDLE Filed Feb. 12, 1941 ii?B 2 J%% Patented July 20, 1943 UNITED STATES PATENT OFFICE 'rooL HANDLECliflord C. Haumerson, Janesville, Wis. Application February 12, 1941,Serial No. 378,502

, 1 Claim. My invention relates to readily attachable and detachabletool handles, and more particularly to handles adapted to be afllxed toa standard screw driver or other tools requiring rotation of the handleand pressure on the end thereof to eflect work.

The primary object of my invention is to'provide a tool handle having arotatable palm rest which, because of its design and consistency, may bequickly and easily attached to and disassembled from standard toolhandles of varying diameters.

Another object of my invention is to provide a detachable tool handlehaving arotatable and cushioned palm rest and a resilient body portion,

said body portion being of such dimension and consistency as to effect atightening of said body portion upon the handle .when same is grippedand rotated.

1 Another object, of my invention is the provision of a tool holdercomprising a body portion to which a rotatable palm rest is affixed. Thesaid body portion is formed of resilient material as to permit readyattachment to and removal from a tool: han the relative proportions ofsaid palm rest and body portion being suchas toprovide for a maximumgrip upon said body portion.

A further object of this invention is to provide a simple structure ofthis character which may be readily and cheaply manufactured.

The above and various other objects and advantages of this inventionwill in part b described in and in part be understood from the followingdetailed description of the present preferred embodiment, the same beingillustrated in the accompanying drawing herein:

Fig. 1 is a detailed side elevation of my device mounted on ascrew-driver handle, a hand being shown dotted in to illustrate theposition of the fingers and palm as respects the tool handle.

Fig. 2 is a longitudinal sectional view from the tool handledisassembled from the tool.

Fig. 3 is a top plan view of said tool handle.

Referring to the drawing wherein like numerals of reference designatecorresponding parts throughout the several views, the numeral I0 is usedgenerally to indicate the generally cylindrical cap or body portion ofthetool handle which is closed at one end by a thick end wall and openat its opposite extremity, forming a relatively long, thin skirt. Themember is molded of resilter grippage and has a bead I 2 around thebottom edge of the skirt tostrengthen said edge. In the molding of saidbody portion an axially aligned shouldered orifice I3 is formed thereinwhich is adapted to receive a. metal sleeve ll, a washer IS, and a rivetI6, said rivet being utilized to assemble the palm rest I! to said bodyportion, said palm rest being molded with an axially aligned shoulderedorifice to receive the rivet it which aflixes and aligns the said palmrest to and with the body portion.

Upon the assembly of the two units, two metal washers l8 and I! arepositioned between the body portion and the palm rest to preventexcessive friction and in more expensive units two plates with ballraces and ball bearings in said races between the plates may be used.

The assembly of the device consists of forcing the sleeve it into theshouldered aperture in the palm rest, slipping the two washers over thesleeve assembly of that unit into the shouldered orifice in the bodyportion, positioning a rivet in the sleeve, slipping awasher over theexposed end of the rivet in the shouldered aperture in the body portionand then turning over the end of said rivet. In assembly of the palmrest and body portion the operator must of course use caution as topermit ready rotatability of the palm rest as regards the body portionwhen the end of the rivet is turned over, it being essential that thebody portion have independent rotary movement with respect the palm restso that the tool over which the body portion i fitted may be rotated oroscillated without causing movement of the said palm rest. I

It will, of course. be understood that various changes and modificationsmay be made in the details of construction and design of thespeciflcally described embodiment of this invention without departingfrom the spirit thereof, such changes in modification being restrictedonly by the scope of the following claim.

What is claimed is:

A tool holder, comprising; a readily attachable anddetachable capincluding a thick end wall and a relatively thin, elongated elasticskirt extending from said end wall and adapted to encompass and snuglyfit various size tool handles; a generally circular cushion palm restadjacent the exterior of said end wall; and means rotatably securingsaid cushion palm rest to said end wall, the greatest diameter of saidcushion palm rest being substantially less than the diameter of theelastic 'skirt adjacent said end wall.

CLIFFORD C. HAUMERSONd

